Joseph dutton



DGC- 22.

J. DUTTON BALANCED FRICTION DRIVING MECHANISM FOR ACTUATING Filed Sept.16. 1924 ROTARY BRUSHES, ROLLERS, AND SUCH LIKE lNYENToR: \Toaop vDuffcn ATTORNEY Patented Dec. 22, 1925.

UNITED stares- JosEPHnUT'ro or MANCHESTER, ENGLAND.

M I 1 F BALANCED FRICTI ON DRIVING MECHANISM FOR AoTUATINe ROTARYBRUSHES, ROLLERS. ANDSUGH LIKE;

Applicationfiled September 16, 1924. Serial No. 737,931.

To all who-m it may concem: I

Be it known that I, Josnrrr Borrow, a subject of the King of GreatBritain and Ireland, residing at Salford,'Manchester, in the county ofLancaster, England, have invented new and useful Improvements inT=alanced Friction Driving Mechanism'for Actuating Rotary Brushes,Rollers, and Suchlike, of which the following is a specification.

My invention has reference to an improved friction or balanced rollingcontact drive by means of which circular brushes, rollers, drums,cylinders 'o'r revolvable bodies can be driven from dis-cs, circularplates or any other provided rotating surce Under my invention fordriving circular brushes I effect a drive by allowing the frictionpulleys on the brushes or the like (and which brushes are supportedinbearings on a carrier) to contact with. a driven disc as for instancethey may contact over a comparatively narrow frictional area applied tothe driven disc.

A. second disc is employed which is not positively driven and thefriction pulleys on the brushes or the like also contact with suchsecond disc. The two discs in effect are spaced apart and the frictionpulleys of the brushes lie or intervene between the discs, that is, thefriction pulleys contact with the spaced discs on the inner providedfaces and near to the peripheries. As stated, one disc is positivelydriven by any suitable means, but theother is not. A spring or springsor equivalent means force the loose disc into contact with the frictionpulleys and also maintain the driving disc in contact whereby thefriction pulleys are gripped between two discs one driven and the othernot. 7

The driving effect obtained, is the rub bing or rotating effect of twopressing and rotating discs which spin the friction pulleys or the likearound on their axes and effect the driving of the brushes or the likewithout imparting any strain or pressure on any bearings. One disc beingloose it A practical embodiment of my invention is indicated in theattached drawing which shows the improvements in connection with arotary brushing machine for brushmg velvets, velveteens, and' suchl1ke,only so much of the machine being illustrated as is necessaryutoexplain the improvements.

In the said tlI'tWlIlgL Fig. 1 1s a broken sectional elevation showingpart of a rotary brushing machine with the improved driving.arrangement.

Fig. 2 shows how the radially arranged and revolvingbrushes act in knownfashion onpassing fabric to be brushed or treated.

V In the construction of drive illustrated for actuating a number ofcircular brushes radially disposed, Imake use of a large carrying disc(1 which supports the brushes 6 the axles of which are sustained inproper bearings. Such carrying disc a is shown supported upon alonghollow sleeve (1 which is suitably driven from the driving shaft 0 bygearing a a a 04 and a and is adapted to run on ball or roller or otherbearings. In the drawings radial ballbearings a a are shown. A centraldriving shaft 0 supports the driving friction disc cl, the drivingfriction disc cl being keyed or otherwise fixed in position on the shaft0, said disc 62 being of smaller diameter than the carrying disc a. Thisdriving friction disc at preferably has a ring of friction material dand its shaft may be driven in any known manner as for example by thefast pulley 03 The non-driven disc 6 faces the driven friction disc andthis runs loosely on ball or roller or other bearings arranged about thedriving shaft 0. The non-driven disc 0 has a ring of friction material 6secured to it and the pulleys b of the radial brushes lie intermediateof the two discs d and 6. spring f surrounds the driving shaft 0 and isadjusted by a washer and nut f or other wise toexert a pressure on thenon-driving disc 6. The spring f serves also to hold up the drivingfriction disc (1 to its Work and to cause thetwo discs 03 and e to presson the driving pulleys b of the brushes and to ensure the rubbing drivewhich it is desired to obtain, whereby, on rotationof the ill) two discscl and e, the interposed brushes are rotated with absolutely equalbalance and without strain on the bearings.

The gearing between the shaft 0 and the sleeve a by means of which thelatter is rotated, is preferably such that the sleeve will rotate in adirection opposite from the may run on two sets of ball-or otherbearings such as e 6 such bearings being confined between a cover andsleeve fitting about the shaft and whichserve to enclose'orcomplete thehousing for the ball or like bear- 1ng's.-

I declare'that what I claim is:

1. A deviceof the character described,

comprising, in combination, adriving shaft, a disk mounted" onsaid-shaft for rotation relatively thereto, a: plurality of rotatablebrushes radially disposed on said disk and adapted to bemove'd bodilyaround the axis of tliefdisk,ai'fric-tion disk: secured to saidshaft forrotation therewith; nieans invengageinenti with said friction disk forrotating' said brushes on their own axes,- and" gearing between saidshaft and" first disk fOI rotating the utter.

2. device of the; character described-,- COIfipIlSIHg, in ombination, adrrving shaft', a disk mounted on said shaft for rotation relativelythereto, a lurality of rotatable brushes radially disposed on said diskand adaptedto be moved bodily aroundthe axis of the disk, a frictiondisk secured to said shaft for rotation therewith, means in engagementwith said friction disk for rotating said brushes on their own axes, andgearing between said shaft and first diskrfo-r rotating the latter in adirection opposite to that of the shaft. 7

3. A device of-the character described, comprising, in combination, adriving shaft, a disk mounted on said shaft for rotation relativelythereto, a plurality of rotatable brushes: radially disposed on saiddisk and;

adapted ;to be moved bodily aro'und'the axis of the disk, a frictiondisk secured to said shaft for rotation therewith, friction means in'en'gagementiwith said friction disk forrotating said brushes on theirown 'a'xes,a

pressure disk loosely mounted" on theshaft" in opposed relation to saidfriction disk and gearing between said shaft and'first disk for rotatingthe latter. 7

In testimony whereof I have signed my name to this specification.

JosEPi-r DUTCH-ON.

adapted to maintain said brush rotating means'rncontact'with saidfriction disk, and

